7942523 has 2 divisors, whose sum is σ = 7942524. Its totient is φ = 7942522.

The previous prime is 7942511. The next prime is 7942537. The reversal of 7942523 is 3252497.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7942523 - 2⁴ = 7942507 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7942523.

It is not a weakly prime, because it can be changed into another prime (7942223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971261 + 3971262.

It is an arithmetic number, because the mean of its divisors is an integer number (3971262).

Almost surely, 2^7942523 is an apocalyptic number.

7942523 is a deficient number, since it is larger than the sum of its proper divisors (1).

7942523 is an equidigital number, since it uses as much as digits as its factorization.

7942523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 7942523 is about 2818.2482147604. The cubic root of 7942523 is about 199.5198733142.

The spelling of 7942523 in words is "seven million, nine hundred forty-two thousand, five hundred twenty-three".